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    <script>
        // 求数组[2, 6, 1, 77, 52, 25, 7]中的最大值
        // 思路：依次两两比较，找出较大的，重新赋值给 max
        let arr = [2, 6, 1, 77, 52, 25, 7];
        let max=arr[0];
        for(let i = 1; i<arr.length;i++){
            if(arr[i]>max){
                max=arr[i];
            }
        }
        console.log(max);
    </script>
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